From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: guoren@kernel.org, arnd@arndb.de
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org,
Guo Ren <guoren@linux.alibaba.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 1/2] csky: Enable generic clockevent broadcast
Date: Wed, 17 Mar 2021 10:14:47 +0100 [thread overview]
Message-ID: <4e57c0f2-c718-01c1-032a-8e4934496b17@linaro.org> (raw)
In-Reply-To: <20210307022446.63732-1-guoren@kernel.org>
On 07/03/2021 03:24, guoren@kernel.org wrote:
> From: Guo Ren <guoren@linux.alibaba.com>
>
> When percpu-timers are stopped by deep power saving mode, we need
> system timer help to broadcast IPI_TIMER.
>
> This is first introduced by broken x86 hardware, where the local apic
> timer stops in C3 state. But many other architectures(powerpc, mips,
> arm, hexagon, openrisc, sh) have supported the infrastructure to
> deal with Power Management issues.
>
> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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prev parent reply other threads:[~2021-03-17 9:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-07 2:24 [PATCH 1/2] csky: Enable generic clockevent broadcast guoren
2021-03-07 2:24 ` [PATCH 2/2] riscv: " guoren
2021-03-07 3:45 ` Anup Patel
2021-03-17 3:40 ` Palmer Dabbelt
2021-03-17 9:14 ` Daniel Lezcano [this message]
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